TRANS-ATLANTIC PROVINCE. 85 
Venus crenulata. Artemis concentrica. Strigilla carnaria. 
» cancellata, ‘5, ~~ lucinalis, Sernele reticulata. 
»  Violacea. Cyclina saccata. »  Variegata. 
Cytherea dione. Trigona mactroides. Cumingia. 
»  circinata. Petricola lapicida. Iphigenia Brasiliensis. 
or maculata. Capsula coccinea. Lutraria iineata, 
+ gigantea. Tellina Braziliana. Periploma inzquivaivis. 
» flexuosa. » bimaculata. Pholadomya candida, - 
XVIII. TRANS-ATLANTIC PROVINCE. 
The Atlantic coast of the United States was supposed by Prof. 
H. Forbes to consist of two provinces: (1) the Virginian, from C. 
Cod to C. Hatteras, and (2) the Carolinian, extending to Florida; 
but no data were supplied for such a division. The total num- 
ber of mollusca is only 230, and 60 of these range farther north, 
15 being moreover common to Europe. These two regions are 
sometimes treated of together as the Pennsylvanian province. 
Dr. Gould describes 110 shells from the coast of Massachusetts 
south of Cape Cod, of which 50 are not found to the northward, 
but form the commencement of the proper American type. The 
shells. of New York and the southern Atlantic States are de- 
scribed by De Kay, in the State Natural History of New York; 
this list supplies 120 additional species, of which at least a few 
are stragelers from the Caribbean province; e.g. Chama arcinella, 
Iphigenia leevigata, Capsula deflorata.”* 
M. Massachusetts. Y. New York. SC. South Carolina. F. Florida. 
Conus mus. F, Cerithium ferrugineum. F. aig 
Fusus cinereus. M. SC. 9 4sp. M. : * 
Nassa obsoleta. M. F. (Mex.) Triforis nigro-cinctus. M. 
» triviittata. M. SC. Odostomia, 6sp. M. Y 
+» vibex. M. F. (Mexico). Turritella interrupta. M. Y. 
Purpura Floridana. (Mex.) »  concava. SC. 
Terebra dislocata. Y. SC. (Vermetus lumbricalis. MM, ?) 
Pyrula? papyracea. F. Calyptreea striata. Y. 
Fulgur carica.- M. SC. Crepidula convexa. M. Y. 
»  canaliculatum. M. SC. a fornicata, M. F. (Mex). 
Oliva literata. SC. Littorina irrorata. Y. 
Marginella carnea, F, Fissurella alternata. (Say) ? 
Fasciolaria distans. SC. (Mex.) Chiton apiculatus. M. SC, 
Columbella avara. M. Y. Tornatella puncto-striata. M. Y. 
Ranella caudata. M. Y. Bulla insculpta. M. Y. 
Natica duplicata. Y. SC. -———- 
Sigaretus perspectivus. Q. SC. Ostrea equestris. SC. F. 
Scalaria lineata. M. SC. Pecten irradians (scallop). 
Ke multistriata. M. Y. Avicula Atlantica. F. 
»  turbinata. NC. Mytilus leucophantus. SC. 
* The sea-shells, of the United States have also been collected and described by 
Say, Le Sueur, Conrad, and Couthouy. 
